Description

2-[[3-[(3-Amino-4-Nitrophenyl)Azo]-2,4-Dihydroxyphenyl]Azo]-5-Nitrobenzenesulphonic Acid is a high-purity, synthetic azo dye intermediate of significant commercial importance. Its complex molecular structure provides the chromophoric backbone essential for producing vivid and stable colorants. This compound is primarily required by manufacturers in the textile, leather, and specialty ink industries seeking to develop high-performance dyes and pigments. We supply this critical intermediate with a focus on batch-to-batch consistency and reliable global logistics to support your production schedules.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of complex, high-value azo dyes for textiles and fabrics.
• Leather Coloring Agent: Used in the formulation of dyes for leather finishing, providing deep, durable colors.
• Specialty Ink Production: A crucial component in manufacturing pigments for inks used in packaging, security printing, and other high-performance applications.
• Research & Development: Employed in chemical R&D labs for developing novel colorants and studying azo compound chemistry.
• Paper Dyeing: Can be utilized in the production of dyes for specialty paper products requiring specific color fastness.

Basic Information

Item	Detail
Product Name	2-[[3-[(3-Amino-4-Nitrophenyl)Azo]-2,4-Dihydroxyphenyl]Azo]-5-Nitrobenzenesulphonic Acid
CAS No.	84100-00-5
Molecular Formula	C18H12N6O9S
Molecular Weight	488.39 g/mol
Synonyms	Acid Black 210; C.I. 300310; 5-Nitro-2-[[3-[(3-amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]benzenesulfonic acid; 2-[[3-[(3-Amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-5-nitrobenzenesulfonic acid; Benzenesulfonic acid, 2-[[3-[(3-amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-5-nitro-; Azo dye intermediate 84100-00-5
EINECS	Contact for details

Quality Control

Our production of 2-[[3-[(3-Amino-4-Nitrophenyl)Azo]-2,4-Dihydroxyphenyl]Azo]-5-Nitrobenzenesulphonic Acid adheres to a stringent quality management system to ensure product integrity and performance. Every batch is analyzed against rigorous in-house specifications, which typically include identity confirmation, purity assay, and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.